Stump-pulling machine



H. E. BARBER. STUMP PULLING MACHINE. APPLICATION HLED AUG.22, 1919.

Patented Aug. 17, 1920.

3 SHEETS-SHEET I.

ATTORNEY H. E. BARBER. STUMP PULLING MACHINE.

APPLICATION FILED AUG-22,19I9.

Patented Aug. 17, 1920.

3 SHEETS-SHEET 2 ATTORNEY H. E. BARBER,

ST UMP PULLING MAC HINE. APPLICATION FILED AUG-22,1919.

1,349,803. Patented Aug. 17,1920.

3 SHEETS-SHEET 3- INV TOR.

A TTORNE Y UNITED STATES- PATENT) OFFICE.

HARRY E. r anna; or GREEN covnsrnmes, rLonrnn, ASSIGNOR, BY MESNE Assremunms, To THE AMERICAN CLEARING COMPANY, or HAMILTON,

OHIO, A CORPORATION OF DELAWARE.

STUMP-PULLING MACHINE.

Specification of Letters Patent. Patented A11 17 1920.

Application filed August 22, 1919. Serial No. 319,133.

To all whom it may concern: a

Be it known that I, HARRY EpBnnnnn, a citizen of the United States, residin at Green Cove Springs, in the county of %lay and State of Florida, have invented certain new and useful Improvements in Stump- Pulling Machines, of which the following is a specification, reference being bad therein to the accompanying drawing.

This invention relates to stump pulling machines, and one object of the invention is to provide a strong, durable machine of this kind which will have ample power to pull stumps of various kinds.

A further object of the invention is to provide a machine of this kind withpwhich' stumps may be pulled over a large area from a single location of the machine.

A further object of the invention is to provide a. machine of this kind in which the pulling device may be connected with a plurality of stumps and these stumps pulled one after the other by the continuous operation of the pulling-device; and to this end it is also an object of the invention to pro vide the main cable with branch lines and suitable connecting devices therefor.

Other objects of the invention will appear as the mechanism is described in detail.

In the accompanying drawings Figure 1 1s a plan view of machine embodying my invention; Fig. 2 is a side elevation of the same; Fig. 3 is a side elevation ofthe pull ing device on a larger scale; Fig. 4 s a front elevation of the pulling device; Fig. 5 IS a. sectional detail view of one of the cleviscs for the branch cables; Fig. 6 is a detail view of the gear shifting device; Fig. 7 is a plan view of the cable and its branches; Fig. 8 is a detail view of the connection between the branch cables and the main cable; and Fig. 5) is an elevation showing the pulling device.

In these drawings I have illustrated one,

nected one to the other by suitable cross bars 2. This base is preferably mounted on skids or supporting devices which will permit it to be moved both longitudinally and trans versely and, as here shown, the side members or channel irons 1 of the base are mounted on skids or runners of wood which have their forward ends extending beyond the end of the base and curved upwardly after the manner of sled runners. These skids are also rounded on their sides to facilitate their transverse movement over the ground. pulling device and the power plant. The atter, in the present construction, consists of an ordinary hoisting engine 3 and a boiler 4 which are mounted directly on the base. The pulling device preferably comprises a winding drum 5 mounted between the side members 6 of asupplemental frame mounted on the forward end of the base. These side members are supported by a b: plate 7 which is rigidly secured to the side members 1 of the base. Preferably the winding drum 5 is rotatable about a vertical axis and, as here shown, it is mounted on a shaft 8 journaled in vertical bearings 9 and 10 carried by the base plate 7, and by a tie bar 11 extending between the two side members 6 of the supplemental frame. Preferably, an anti-friction thrust bearing 12 is lIltGl'POSGCl between the lower end of the drum and the base plate 7 This drum is rotated by means of the engine 3 and is preferably worm driven. To this end a worm wheel 13 is mounted on the shaft 8 above the drum and. in order that the drum may be disconnected from the driving mechanism, I prefer that this worm wheel. should be loosely mounted on the shaft 8 and connected thereto by suitable clutch mechanism. In the present construction an anti-friction thrust bearing 1 1 is interposed betweenthe worm wheel. and the tie bar 11, above which it is mounted, and the worm wheel carries a clutch member 15 which is rigidly secured to the upper surface there of and cooperates with a second clutch member 16 slidably mounted. on the shaft 8 and held against rotation relatively thereto by a spline 17. The movable clutch member may be shifted by any suitable mechaside members of the supplemental frame.

Iligidly secured to the shaft 19 is an arm 20 Mounted on this base are the which is connected by means of a rod 21 with a-roclt arm 22 carried by a rock shaft 23 which is mounted in the side members 1 of the base andv has one end projecting laterally beyond the base, to which end is secured an operating lever 24:, by means of which the clutch can be operated to connect the Winding drum with or disconnect. the same from the driving mechanism. A Worm 25 meshes with the worm wheel 13 and is mounted on a shaft 26 extending transversely of the shaft 8 and journaled in the side members 6 of the supplemental frame. Preferably,this shaft is provided with an' anti-friction thrust bearing 27 to take'up the end thrust of the Worm. A gear 28'mounted on the shaft 26 meshes with a gear 29 on a shaft 30, which gear is connectedthrough gears 31 31 and 32 with a main driving gear 38 on the shaft of the engine 3. I prefer to provide means for driving the worm at different speeds and, to this end, I have mounted on the shaft 26 a second gear 84, of a smaller diameter than the gear 28, and have provided the shaft 30 with correspondingly larger gear 35. The gears 28 and 3a are-connected one to the other and may be shifted along the shaft 26 by 'means of suitable shiftin mechanism 36 which is operated by a han wheel 37; I also prefer to provide the wind ing drum with a brake which is here shown as" a friction band 38 engaging a friction surface or drum at the upper end of the winding druin. This brake may be operated in any suitable manner but as here shown, is actuated by a'rod 39 which is connected with a rock arm l0 mounted on the rock shaft 23 and so arranged that the brake will be set when the lever 24 is manipulated to opera te the clutch member 16 to disconnect the winding drum from its driving mechanism. If desired, the shaft 30 may he'provided with a belt wheel 41 by means of which the power mechanism may be connected with other mechanism to be driven, such for example as a saw.

The winding drum has connected therewith and adapted to be wound about the same a suitable flexible connecting member or cable, which is preferably in the form of asteel cablfe and which is adapted to be connected with the stump or stumps to be ulled; The mechanism 'as a whole is held against longitudinal movement during the pulling operation by means of an anchor 42 which is sunk in the ground and connected with the base 1. Preferably, this connection is of such a character that the baseand the mechanism carried thereby can be adjusted relatively to the anchor to permit the baseto'line up with the cable and the stump which is being 'pulled. In the present construction the'c'onnection between the'an'chor' anid'the base is a pivotal one and is of such a character that the base will have free pivotal movement relatively to the anchor. To accomplish this the anchor is provided with a shaft or connecting pin $3 which extends upwardly through a bearing 44; carried by plates which are rigidly secured to the upper and lower edges of the side members 1 of the base. Consequently, when the connecting cable becomes taut and the pull is exerted upon the stump, the base is caused to swing about its point of connection with the ancho' and to move into a position in line with the cable and the stump. This construction not only enables the mechanism to be automatically lined up for the pullii'lg operation, but it also enables stumps to be pulled from any point within a circle described about the axis of the base. In the present construction I utilize a cable live hundred feet long and, consequently, with a single location or setting of the machine I am able to pull all the stumps within a circle having a diameter of one thousand feet. The skids upon which the base is mounted readily permit of the turning movement of the base. Vhen it is desired to move the machine from one location to another, it is disconnected from the anchor, by removing the center pin 43, and the cable attached to a iixcd object, such as a stump or a tree, and the winding drum actuated to take up the cable and thus draw the machine toward the point at which the other end of the cable is fixed.

I have also provided means whereby the pulling device may be connected with a plurality of stumps and will be enabled to pull these Stumps one after the other by the continuous operation thereof. To this end the main cable, which is shown at -16, is provided with a plurality of branch cables 17, each of which is adapted to be connected with a separate stump. In connecting the branch cables with the rcspcctivc stumps, different amounts of slack are left in the several cables so that they will not become taut and operative at the same time. This arrangement is such that when the main cable is taken up one of the branch cables will become taut and will operate to pull the stump with which it is connected. T he other branch cables, however, will remain slack until the stump with which the first cable is connected has been pulled, after which the second branch cable will become taut and will operate to pull its stump, after which the third branch cable will become operative, and so on. The main cable and the branch cables may be constructcd and connected in various ways, but to facilitate the handling of the cables. I prefer that the maincable' should comprise a plurality of sections and, in the present instance, I con template using five sections, each one hundred feet long. Means are providedfor connecting to the end of each section of the cable such number of branch cables as may be desired. To this end each main cable has secured thereto a link 48 on which is mounted a series of connecting devices or clevises -19, each of which is adapted to receive between its apertured arms the apertured end of a thimble or casting 50 about which the end of the branch cable is passed and to which it is rigidly secured. A pin 51 extends through the apertured arms of the clevises and the opening in the thimble and serves to retain the parts in their connected positions. This pin is preferably self locking and to this end is provided at its lower end with a shoulder 52 which, when the eableis subjected to strain, will be moved beneath the edge of the clevis and will prevent the pin from working its way out of the i-levis. A suitable implement or hook, such as shown at 53, may be provided for engaging the pin, which is hollow, and withdrawing it after the strain on the cable has been relieved and the parts are slack.

The operation of the mechanism will be readily understood from the foregoing description of the several parts thereof, and it will be apparent that I have provided a power operated mechanism which is of a very strong, durable character and to which ample power may be applied to pull stumps of various sizes. Further, it will be apparent that the device will not only automatically adjust itself to the position of the stump which is being pulled, but that it can be so adjusted in a single location as to enable it to pull all the stumps within a large area, and also that by connecting the pulling device to a plurality of stumps and caiiising these stumps to be successively pulled by the continuous operation of the pulling device, I am enabled to pull a large number of stumps within a given time. It will also be apparent that the construction is simple in character andcomprises but a few parts, and that these parts are not liable to be broken or disarranged in such a manner as to interfere with the operation of j the machine. It will also be noted that I have so arranged the mechanism on the base as to divide the Weight thereof between those portions of the base onthe opposite sides of the anchor, thus giving a partially balanced effect which facilitates the turning movement of the base about its point of connection with the anchor. In the. present construction this is accomplished by mounting the boiler on the rear end of the base while the engine and the pulling devices are mounted on the forward portion of the base. It will also be apparent that an anchor of any suitable kind may be employed and, while the present anchor is shown for the purpose of illustration, no

claim is herein made to the specific construction thereof, as it forum the basis of a separate application for patent.

I have also provided means for collecting the stumps in piles, and to this end I have provided a boom 56, which may be mounted on the forward end of the frame and which carries in its upper end a double sheave 57, over which extends a double cable 58. The inner ends of this cable are passed in opposite directions about a drum 59, and the outer end of the cable is passed about a sheave which is not here shown, but which may be attached to a stump, or any fixed support, at a point remote from the ma chine. Carried by each stretch of cable 58 is one or more hooks 60 adapted to carry slings (S1, or other suitable devices for connecting the same with stumps. In operation one of the hooks 60 ismoved outwardly and connected with the stump which has been pulled. The cable is then actuated to carry the stump toward the machine and this action of the cable carries the other hook and its sling outwardly, so that while one stump is being brought in and deposited on the pile the other sling is moving outwardly and being connected with another stump.

'While I have shown and described one embodiment of the invention, I wish it to be understood that I do not desire to be limited to the details of construction, as various modifications may occur to a person skilled in the art.

Having thus fully desu'ibed my inven tion, what I claim as new and desire to secure by Letters Patent, is:

1. In a mechanism of the :-haracter de scribed, an anchor to be sunk in the ground, a base pivotally connected with said anchor, a stump pulling device carried by said base, and means for connecting said device with a stump to be pulled.

2. In a mechanism of the character described, an anchor to be sunk in the ground, a base to be supported on the ground and (onnected with said anchor for adjustment about a vertical axis extending through a portion thereof, a winding drum mounted on said base, a *able ronnected with said drum to adapt it to be connected with a stump to be pulled, and means for actuating said drum.

3. In a mechanism of the character described, an anchor to be sunk in the "round, a base to be supported on the ground and connected with said anchor for pivotal movement about a vertical axis, a stump pulling device carried by said base, and means for connecting said device with a stump to be pulled.

4. In a mechanism of the cl'iaracter described, an anchor to be sunk in the ground, a base to be supported on theground and "scribed, an anchor to be sunk n the ground,

said anchor. a stump pulling device carried by said base, and means :for connecting said device with a stump to be pulled.

5. Ina mechanism of the character described, an anchor to be sunk in the ground, a base to be supported on the ground and pivotally connected between its ends with said anchor, a stump pulling device carried by said base, means for connecting said device with a stump to be pulled, and means for connecting said base with and disconnecting the same from said anchor while the latt r is i he g oun 6. In a mechanism of the character dea base having side members to rest on the ground on opposite sides of said anchor, said base and said anchor being separately movable into their operative positions, means to connect said base between its ends with said anchor, a stnmp pulling device carried by said base, and means for connecting said stump pulling device with a stump to be pulled, I

7. In a. mechanism of the character de scribed, an anchor to be sunk inthe ground, a base having side members to rest on the ground on opposite sides of said anchor, means to pivotally connect said base between its ends with said anchor, a winding mechanism mounted on said base in front of said anchor, a power plant mounted on said base in the rear of said. anchor, and a cable to connect said winding mechanism with a stump to, be pulled.

8. In a mechanism of the character tie scribed, an anchor to be sunk in the ground, a base supported independently of and connected with said anchor and capable of movement about a vertical axis extending through a portion thereof, a stump pulling device carried by said base, and means for connecting said stump pulling device with a stump to be pulled.

9 In a mechanism of the character described, an anchor to be sunk in the ground, a base having side members to rest upon the ground on opposite sides of said anchor and pivotally connected thereto, for movement about a vertical axis, a stump pulling device carried by said base, and means for connecting said stump pulling device with a stump to be pulled.

10. In a mechanism of the character describechan anchor to be sunk in the ground, a base, said anchor and said base being separately movable into their, operative positions, means to. connect said base directly with said anchor, a stump pulling device carried by said base, and means to connect said stump pulling device. with the stump to b pulle 11. Ina, mechanism oi the character described, anchor to be'sunl; in the ground,

a base supported independently of said anchor, means to connect said base directly with and to disconnect. the same from said anchor while the latter is in the ground. and a stump pulling mechanism mountcd on said base.

12. In a. mechanism of the character dcscribed, an anchor to be sunk in the ground, a base comprising side members to rest upon the ground on opposite sides of said anchor and adapted to be connected with and disconnected from said anchor while the latter is in the ground, a. stump pulling device carried by said base, and means for connecting said device with a stump to bc pullcd.

13. In a mechanism of the charactcr dcscribed, a base, a supplenwutal tramc carried by said base, a vertical shai't journalcd in said supplcmcntal frame, a winding drum secured to said shaft, a worm \vhccl loosely mounted on said shai't, a clutch mcmbcr connected with said worm whccl, a second clutch member slidably mounted on said Shaft and held against rotation rclativcly thereto, a rock shaft, a yoke carricd by said rock shaft and conncctcd with said slidablc clutch member, a rock shai't mountcd near the bottom or" said supplemental 'l'ramc. and connected with the first mcntioncd rock shaft, a lever for actuating the said last mentioned, rock shaft, a worm meshing with said worm wheel, and means for rotating said worm.

14, In a mechanism of the character described, a base, a vertical shai'it carried by said base, a. winding drum secured to said shaft, a driving member rotatably mounted on said shaft, means for connecting said driving member with and disconnecting thc same from said drum, and a brake to control the movement of said drum when it is disconnected from said driving member.

15. In a mechanism oi the character dcscribed, a base, a. vertical shalt carried by said base, a winding drum mounted on said shaft, a driving member mounted on said shaft, clutch mechanism for connecting said driving member with said drum. a friction drum connected with said winding drum. a

friction band extending about. said friction drum, means for actuating said clutch mechanism, and a single device for opcrating the actuating means for said clutch and for said friction band.

16. In a mechanism of the character described, a base, a stump pulling dcvicc mounted on said base, means for connecting said device with a plurality oi stumps to be pulled, and for causing said stumps to be pulled one after the other, an anchor to bc sunk in the ground, and a pivotal comicction between said anchor and said base whereby said base will automatically alinc itself: with each stump as the latter is pullcd.

l7. In a mechanism of the character described, an anchor to be sunk in the ground, a supporting frame connected With said anchor for pivotal movement about a vertical axis, a winding drum mounted on said frame for rotation about a vertical axis, means for actuating said druni, a cable connected with said drum and comprising a plurality of sections' and a plurality of branch cables connected with sald mam cable and each adapted to be connected With a stump to be 10 pulled.

hereto.

HARRY E. BARBER. 

